Answer:
There are no known organisms because of the lack of sunlight necessary for photosynthesis to produce these organisms
Explanation:
The bathyal zone is less densely populated. Sunlight does not reach this zone, meaning primary production, if any, is almost nonexistent
How has the human population grown in the last 200 years? Why has human population growth accelerated in the last 200 years?
Answer:
1. The size and growth rate of the human population has changed in the past 200 years because reproduction rates have increased due to the large number of people in the world. 2. Human population has grown exponentially over the past century. It has done so largely by producing large amounts of food, and learning how to control disease. Ten thousand years ago, when humans first invented agriculture, there were maybe one million humans on the planet.
Explanation:
Answer:
1. The size and growth rate of the human population has changed in the past 200 years because reproduction rates have increased due to the large number of people in the world. 2. Human population has grown exponentially over the past century. It has done so largely by producing large amounts of food, and learning how to control disease. Ten thousand years ago, when humans first invented agriculture, there were maybe one million humans on the planet
Explanation:
The light reactions of photosynthesis occur within the _____ of the chloroplast and the calvin cycle reactions occur within the _____ of the chloroplast.
The light reactions of photosynthesis occur within the Thylakoid membrane of the chloroplast and the calvin cycle reactions occur within the Stroma of the chloroplast.
What is the meaning of photosynthesis?Photosynthesis is defined as a process in which solar energy is captured and organic molecules are produced. This process is fundamental to the survival of life on the planet and is the main way in which energy enters the biosphere.
In this case, looking at some parts that occur in the photosynthesis process, we have that the Thylakoid membrane of the chloroplast and the calvin cycle reactions occur within the Stroma of the chloroplast.
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laminin was used as maker to show decreased vessel density after umbilical cord occlusion fetal sheep.
Laminin was employed as a marker to demonstrate the reduced vessel density following umbilical cord occlusion in fetal sheep.
Umbilical cord occlusion in fetal sheep is an experimental technique used to simulate a condition similar to human fetal distress. In this study, laminin, a protein found in the extracellular matrix of blood vessels, was utilized as a marker to assess vessel density changes.
Laminin is specifically chosen as a marker because it is a component of the basement membrane, which provides structural support to blood vessels. By labeling the blood vessels with laminin, researchers can visualize and quantify the vessel density in different regions of interest.
After umbilical cord occlusion, the reduced blood flow can lead to a decrease in vessel density. By utilizing laminin as a marker, researchers can observe and analyze the changes in vessel density, providing valuable insights into the impact of reduced blood flow on the vascular system during fetal development.
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Most populations demonstrate ____________ growth, in which the population size increases exponentially until it levels off near an equilibrium value for that species.
Most populations demonstrate exponential growth, followed by reaching an equilibrium value specific to the species. This growth pattern is known as logistic growth.
Initially, populations experience rapid multiplication due to ample resources and favorable conditions. However, as resources become limited and competition intensifies, growth rates gradually decline, eventually stabilizing near the carrying capacity of the environment.
Populations typically exhibit logistic growth, a pattern characterized by an initial phase of exponential growth followed by a leveling off near a stable equilibrium. Initially, when resources are abundant and conditions are favorable, individuals within a population reproduce rapidly, resulting in a high birth rate. This exponential growth continues until the population nears the carrying capacity of its environment, which is the maximum number of individuals the environment can sustain. At this point, the population reaches a point of equilibrium where birth rates equal death rates, and population size stabilizes.
The leveling off of population growth is primarily influenced by limiting factors such as resource availability, competition, predation, disease, and environmental conditions. As the population approaches the carrying capacity, resources become increasingly scarce, leading to heightened competition among individuals. This competition, coupled with factors like predation and disease, causes the growth rate to slow down. Consequently, birth rates decline, and death rates may increase, maintaining a balance between births and deaths. Eventually, the population size stabilizes near the carrying capacity, where available resources are utilized to their maximum extent.
In summary, most populations demonstrate logistic growth, characterized by initial exponential growth followed by a leveling off near the carrying capacity. This growth pattern reflects the interplay between resource availability, competition, and environmental factors, which regulate population size and maintain a stable equilibrium.
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PLEASE HELP PLEASE PLEASE HELP ME WITH OUT
Answer:
The big B
Black Ginuea Pigs
Explanation:
Any uppercase letter when dealing with Punnett squares is automatically the dominant trait.
When You have at least one Uppercase the dominant trait is the one that shows.
WILL GIVE BRAINLIST 2 BEST ANSWER
2. You have a green rock with a volume of 15cm3 and a mass of 45 g. What is its density?
Answer:
The formula for solving density is:
p=m/v
p= 45/15
p= 3 g/cm^3
exudate from a burn submitted on a swab for bacterial culture grew a gram-negative bacillus that was oxidase-positive, produced an alkaline slant and butt on tsia, was resistant to numerous antibiotics, and produced a green, water-soluble pigment. this organism would be identified as:
Exudate from a burn submitted on a swab for bacterial culture grew a gram-negative bacillus that was oxidase-positive, produced an alkaline slant and butt on tsia, was resistant to numerous antibiotics, and produced a green, water-soluble pigment, this organism would be identified as Pseudomonas aeruginosa.
If a burn wound exudate submitted on a swab for bacterial culture grew a gram-negative bacillus that was oxidase-positive, produced an alkaline slant and butt on tsia, and was resistant to numerous antibiotics while also producing a green, water-soluble pigment, then the organism would be identified as Pseudomonas aeruginosa.
This is an opportunistic pathogen that is a common cause of nosocomial, or healthcare-associated, infections. It is also known for its ability to develop antibiotic resistance.
Treatment for infections caused by Pseudomonas aeruginosa may include topical or systemic antibiotics, depending on the severity and location of the infection.
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Select two of the following examples showing how carbon atoms can move from a land plants (biosphere) to the atmosphere
1. a tree burned in a forest fire
2. marine plants are compacted over time becoming limestone
3. a plant is eaten by an animal and then carbon dioxide is released through respiration
4. seashells forming limestone are melted in a volcano which erupts
a tree burned in a forest fire
a plant is eaten by an animal and then carbon dioxide is released through respiration
A tree burned in a forest fire releases carbon stored in the tree in the form of carbon dioxide into the atmosphere.
When a plant is eaten by an animal, the carbon stored in the plant is released into the atmosphere through the animal's respiration as carbon dioxide.
Carbon atoms can move from land plants (biosphere) to the atmosphere when a plant is eaten by an animal and then carbon dioxide is released through respiration. Hence, option C is correct.
What is the carbon cycle?The exchange of carbon between the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth occurs through the carbon cycle, a biogeochemical cycle. Both biological substances and many minerals, including limestone, mostly consist of carbon.
respiration, combustion, decomposition, and photosynthesis. Carbon enters plants and other living things through the atmosphere. Carbon dioxide, for instance, is a contaminant in the atmosphere.
When a plant is eaten by an animal and then carbon dioxide is released through respiration, then carbon atom moves from the biosphere to the atmosphere. Hence, option C is correct.
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15. The human embryo and all other vertebrate embryos have gill slits. This best supports the idea that
a. Life descended from water
b. Embryos can breathe under water
c. Vertebrates are evolutionarily related
d. Humans become fish before they become human
Answer:
b. is the answer
Explanation:
synthesis about climate change
Explanation:
Climate change describes a change in the average conditions — such as temperature and rainfall — in a region over a long period of time. ... These include warming temperatures and changes in precipitation, as well as the effects of Earth's warming, such as: Rising sea levels. Shrinking mountain glaciers.
hope this helps you
have a great day :)
Answer:
Climate change describes a change in the average conditions — such as temperature and rainfall — in a region over a long period of time. These include warming temperatures and changes in precipitation, as well as the effects of Earth's warming, such as Rising sea levels. Shrinking mountain glaciers.
Greenhouse gas emissions—primarily from human activities such as the burning of fossil fuels— are causing changes in the global climate. Global temperatures increased approximately 1°F over the 20th century, and additional warming of 2.5-10.5°F is projected over the next century. The consequences of this warming for the United States will be significant. Natural resources and wildlife are dependent upon climate, as are the economy and human health.
Since 1998, the Pew Center has been chronicling the projected impacts of climate change on important economic sectors, human health, and natural resources. A Synthesis of Potential Climate Change Impacts on the United States by Joel B. Smith of Stratus Consulting Inc. is the eleventh in a series of reports examining the potential impacts of climate change on the U.S. environment. This report provides a synthesis of prior Pew Center reports regarding climate change impacts across a number of sectors and regions. This culmination of our Environmental Impacts series is being released with a companion report in our Economics series entitled U.S. Market Consequences of Global Climate Change, which provides an in-depth analysis of the market implications of climate change for the U.S. economy. This synthesis reveals:
Natural systems are more vulnerable to climate change than societal systems. Species and ecosystems have limited ability to adapt to climate change, and as a consequence, U.S. biodiversity is likely to suffer. Managed sectors such as agriculture and forestry may avoid or reduce some adverse effects of climate change, but this adaptation will not be perfect or cost-free.
Some U.S. regions are more vulnerable than others to climate change. The southern United States appears more vulnerable to the adverse effects of climate change than the North, due in large part to its low-lying coastal areas and the sensitivity of southern agriculture and forestry to warmer and dryer conditions. In the North, these sectors may benefit from longer growing seasons, but these benefits may not be sustained at higher magnitudes of warming. Warming may also reduce winter energy costs in the North, but it will increase cooling costs and the risk of heat-related illness and death in northern cities.
Economic studies suggest that the market consequences of low-to-moderate warming will be approximately ±1 percent of U.S. gross domestic product (GDP). However, studies also indicate that any net economic benefit of climate change peaks at relatively low levels of warming, beyond which benefits decline and damages begin to accrue.
The rate and magnitude of future climate change will be important. Gradual, moderate changes in climate would provide some opportunity for both natural and societal systems to adapt. In contrast, rapid or large changes in climate would increase the risk of large-scale, irreversible disruption of Earth’s environment, such as a shutdown of the thermohaline circulation or the collapse of the West Antarctic ice sheet.
Contemporary climate change includes both global warming and its impacts on Earth's weather patterns. There have been previous periods of climate change, but the current changes are distinctly more rapid and not due to natural causes. Instead, they are caused by the emission of greenhouse gases, mostly carbon dioxide (CO2) and methane. Burning fossil fuels for energy use creates most of these emissions. Agriculture, steelmaking, cement production, and forest loss are additional sources. Greenhouse gases are transparent to sunlight, allowing them to heat the Earth's surface. When the Earth emits that heat as infrared radiation the gases absorb it, trapping the heat near the Earth's surface. As the planet heats up it causes changes like the loss of sunlight-reflecting snow cover, amplifying global warming.
What is the name of this apparatus that zandile set up the following apparatus to investigate how temperature affects transpiration rate
Potometer is the apparatus which was used to investigate how temperature affects transpiration rate.
What is a Potometer?This is also referred to as transpirometer and it measures the level of water uptake in a leafy shoot.
Increase in temperature will lead to transpiration which can be detected by using the potometer to measure the water level.
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1. Look at the five structures shown here. How do you think they are related to each other?
Answer:
They are all related to cells
Explanation:
;^; can you list the answers
DNA is a structure made up of two coiled polynucleotide chains with nitrogenous bases present in chromosomes. These chromosomes are present in the nucleus of the cell. These cells together form an organism.
What are Cells?Cell is define as the smallest unit which can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts:
1. The cell membrane
2.The nucleus
3. The cytoplasm.
A nucleus is defined as the membrane-enclosed organelle within a cell that contains chromosomes. It is an array of pores, or pores, in the nuclear membrane that allow the selective passage of certain molecules, such as proteins and nucleic acids, into and out of the nucleus.
Chromosomes are define as the threadlike structures made of protein and a single molecule of DNA which serve to carry the genomic information from cell to cell. These DNA (Deoxyribonucleic acid) is a polymer which is composed of two polynucleotide chains that coil around each other to form a double helix consisting of nitrogenous bases.
Thus, DNA is a structure made up of two coiled polynucleotide chains with nitrogenous bases present in chromosomes. These chromosomes are present in the nucleus of the cell. These cells together form an organism.
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the pericarp was a major advance in the evolution of angiosperms. why is having a pericarp so important?
The pericarp, often known as the fruit cover, is made up of both full and unfinished layers. At maturity, the pericarp of all cereal grains is dry and primarily made up of empty cells. It supports and protects the developing endosperm and embryo throughout development. The inner epidermis is the pericarp's deepest layer.
The pericarp's layers each have a specific function in preserving and distributing the fruit's seeds. Some plants lack the fleshy mesocarp layer in their pericarp, including beans and sunflowers. Since they usually dry out and split open to release their seeds, these are regarded as dry fruit.
Fruit pericarp primarily aids in the protection and seed dissemination processes.
Seed Dispersal
The smell and variety of colors of the pericarp greatly aid in the dissemination of seeds. Fruits can be both dry and fleshy, and as a result, different seed dispersal media are used.
Protection of Seed
The periplasm, which is the innermost layer, is crucial for seed nourishment during developmental phases in addition to seed distribution. We are aware that an endocarp is situated closest to the seed and is attached to the ovary's placental layer by an umbilical structure (funiculus).
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1. Shreya's grandmother has pain in her knees. Her neighbor said it could be because of the wearing off of her knees. Do you think she is right? Which part of her knee may have worn off?
Arthritis or rheumatoid arthritis is a prevalent condition among the elderly.
The knee is one of the largest and most intricate joints in the body. The knee is the joint that links the femur (thigh bone) to the shin bone (tibia). The smaller bone that runs alongside the tibia (fibula) and the kneecap are the extra bones that make up the knee joint (patella).
Osteoarthritis is the most common kind of arthritis that affects the knee. Osteoarthritis is a degenerative disease in which the cartilage in the joint gradually deteriorates. It primarily affects persons in their forties and fifties. Osteoarthritis may be caused by excess stress on the joint such as repeated injury or being overweight.
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Which components are required in plasmids? (select all that apply)
a. A selectable marker, usually antibiotic resistance
b. A bacterial artificial chromosome
c. One or more unique restriction sites where foreign DNA can be added
d. An origin of replication to allow it to replicate in E. coli independently of the host chromosome
Plasmids are essential for scientific research and genetic engineering because they are independent of the host bacterium's chromosome.
Here correct answer is E)
They can be used to introduce changes into the genome and as a delivery system for foreign DNA into the cell. Plasmids must contain several components for them to be used properly. A bacterial artificial chromosome (BAC) helps to ensure that any changes made to the plasmid's DNA will be maintained. A selectable marker, usually an antibiotic resistance gene, is also necessary to identify colonies carrying the plasmid during cloning processes.
Additionally, one or more unique restriction sites need to be included in order for foreign DNA to be added to the plasmid. Finally, an origin of replication is needed to ensure that the plasmid can replicate independently of the host chromosome. With all of these components present, a plasmid can be readily employed for a multitude of experiments and is an efficient means of introducing genetic changes and foreign DNA into a cell.
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≛ Someone please help me!! ≛
Answer:
the answer is a im pretty sure
Explanation:
how cellular transport is beneficial to cells, and how it play a role in homeostasis and why is transportation across the cell membrane (active, and passive) is important to maintaining homeostasis, and cellular activities.
Answer:
Explanation:
Cell transport refers to the movement of substances across the cell membrane. Probably the most important feature of a cell's phospholipid membranes is that they are selectively permeable. A membrane that is selectively permeable, or semipermeable, has control over what molecules or ions can enter or leave the cell, as shown in Figure below. This feature allows a cell to control the transport of materials, as dictated by the cell's function. The permeability of a membrane is dependent on the organization and characteristics of the membrane lipids and proteins. In this way, cell membranes help maintain a state of homeostasis within cells (and tissues, organs, and organ systems) so that an organism can stay alive and healthy.
What is a play’s conflict?
A.the struggle between two forces in the play
B.the people and animals in the play
C.the time and place where the story happens
D.events that make up the story in the play
The fight between two opposing forces within a play is referred to as the conflict. The conflict in a play is best described by Option A. The plot and character development are driven by conflict, which is a key component of dramatic storytelling.
Conflicting aims, aspirations, or ideas amongst various individuals, groups, or even inside oneself are a part of it. Internal conflicts within a character's thoughts or exterior conflicts between persons or organisations are just two examples of how the conflict could appear. These conflicts heighten the stakes, build suspense, and advance the plot, resulting in dramatic turns of events and endings that reshape the play's general plot.
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pllsssssss help i will mark brainliest
Answer:
EU genes enclosed in nuclei, contain organelles,
BOth rigid cell wall, bacteria, divide by mitosis
Pro genes float fee in cytoplasm
Explanation:
Evaluate three ways in which conflict can help to build positive relationship between youth and their parents
Answer:
Conflict can help to build a positive relationship between parents and youth due to the fact that conflict can lead to communication. When conflict arrives you need active listening, communication, and responsibility to approach any issue that may occur.
Explanation:
Which of these is an example of a PHENOTYPE?
A-an allele for yellow flower color within a flower's genome
B-yellow flower color
C-a gene that tells how big someone's nose will be
D-two identical alleles for nose size
I think this is B: Yellow Flower Color
I think phenotypes focus on the physical characteristics rather than the alleles and genes (genotypes).
ASAP!! I am doing combined science higher can someone help me please
what happens to blood flow during exercise? 6 marker
Blood flow to the exercising muscles of the brachium and thigh increased by 31- to 38-fold during moderate exercise and by 70- to 76-fold during severe exercise.
Solve for C. F-32/1.8 =
F = 426F
Answer:
C =− 27.7
Explanation:
Explain the difference between transverse wave and longitudinal wave.
Answer :
Transverse wave is a wave which vibrates or oscillates at right angles to the direction the wave or energy is moving
Examples : light waves abd waves that are traveling on the surface of the water.
Longitudinal waves is a wave which vibrates or oscillates to the direction the energy or wave is moving
Example : sound waves
Answer:
» A transverse wave is made up of crests and troughs at maximum displacements hence vibrating energy at right angles, where as a longitudinal wave is made up of compressions and rare factions where energy is assigned and kept in those particle density regions
Explanation:
\(.\)
Phospholipids are important molecules in cells. Considering the structure and function of phospholipids?
a. They contain a glycerol backbone.
b. The phosphate head group is polar.
c. The molecule is an important part of cell membranes.
d. The non-polar section attracts water molecules.
e. They are a major form of energy storage.
The right answer is option D The non-polar section attracts water molecules.
The polar molecule of the hydrophilic head and the aliphatic chains of the hydrophobic tails are both important for phospholipids' physicochemical properties. Such amphiphilic molecules frequently form structures in micelles, liposomes, or lipid bilayers when they are arranged in an aqueous media so that only their hydrophilic head is in contact with the water molecule
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Which of the following is a function of the plasma membrane?
a. breaks down lipids, carbohydrates, and proteins from foods
b. stores water, salt, proteins, and carbohydrates
c. keeps the cell wall in place
d. regulates which materials enter and leave the cell
Which of the following properties of life is
demonstrated by
the series of chemical reactions in the an organism that allow it
to do work (i.e. move, grow, reproduce, maintain structures)?
1.Response to Stimuli
2. Energy Processing/Metabolism
3. Adaptation
4.Growth and Development
The quality of life that sets apart organisms from other physical substances. All biological activities can be carried out by organisms with life.
What are the properties of life?They can respond to any stimuli, develop, reproduce, transfer energy, and regulate internal processes—these are their key distinguishing traits. Plants, mammals, algae, protists, and fungi are all examples of living things.
The traits of life include organization of growth, development that needs energy, reproduction that reacts to stimuli, and homeostasis maintenance. These qualities are crucial for surviving and leading fulfilling lives. The creatures will perish if these traits are missing.
Consequently, the appropriate life choices are:
1) reacts to external stimuli.
2) controls internal functions.
3) expands and changes.
4) gives forth energy.
Therefore, all the process is important for life processes.
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What gave the smooth ER its name?
The smooth endoplasmic reticulum (smooth ER) got its name due to its appearance under an electron microscope.
Unlike the rough endoplasmic reticulum, which has ribosomes attached to its surface giving it a rough texture, the smooth ER has a continuous, smooth membrane without ribosomes. This membrane-bound organelle plays a crucial role in lipid synthesis, metabolism, and detoxification of drugs and toxins. It also helps regulate calcium ions in the cell and participates in the breakdown of glycogen.
This structure allows the smooth ER to perform specific functions, such as lipid and steroid synthesis, detoxification of harmful substances, and calcium ion storage. The absence of ribosomes and its associated smooth appearance led scientists to name this organelle the smooth endoplasmic reticulum.
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describe what the environment of the Arctic was like 375 million years ago
Answer: About 375 million years ago, Canada's Ellesmere Island looked very different. It enjoyed a subtropical climate on a massive continent, with big ferns and giant horsetails. Not only did the landscape look different, so did the animals.
Explanation:
during freezing, what is the phase change occurring?
It's liquid to solid